Inflammation of the wisdom teeth and inability to open the mouth may be caused by pus in the gum tissue, which may take 3-7 days to return to normal. Wisdom teeth usually grow out gradually in adulthood, in the process of growth, may cause inflammation of the surrounding tissues, and in severe cases, the gums may also become pus-filled, severe pain or even inability to open the mouth. When this happens, you need to follow the doctor’s instructions to take amoxicillin and other antibiotics to actively treat, you can also use hydrogen peroxide disinfectant solution for local rinsing disinfection, after the local tissue inflammation slowly dissipate, the abnormal symptoms will gradually improve, it may take about 3-7 days. Wisdom teeth inflammation caused by the mouth can not open, must be timely medical examination, if necessary, can also consider removing wisdom teeth, help to maintain oral health.